Summary:
ZIP code 55939 covers Harmony, Minnesota, and contains exactly one high school: Fillmore Central Senior High, a public school in the Fillmore Central district serving grades 7 through 12 with 264 students. Because it is the only high school in this area, there is no local school-to-school comparison to make — families here are choosing between this building and schools outside the district. It is a small combined junior/senior high, with roughly 44 students per grade, a 30.3% free or reduced lunch rate, and a 12.8:1 student–teacher ratio.
The clearest strengths are completion and the younger grades. The 2024–25 graduation rate was 98.1%, well above the state's 84.9%, and the dropout rate of 1.8% was less than half Minnesota's 4.2%. Seventh-grade reading reached 56.5% proficiency against 43.5% statewide, and eighth-grade science 22.6% against 16.7%. Proficiency is also trending up: from 2024–25 to 2025–26, math rose 6.8 points and reading 5.7 points, both outpacing a state that was flat to slightly down.
Upper-grade results are the concern. End-of-course science was 12.8% versus 35.0% statewide, 10th-grade reading 22.0% versus 42.5%, and 11th-grade math 15.0% versus 35.3%, with proficiency dropping steadily as grade level rises. Over three years the school's percentile rank slipped from 32 to 25 to 15, and it now holds a 1-star rating while the district sits at the 59th percentile — a 44-point gap. Because tested classes are small, any single-year figure should be read cautiously, but the upper-grade pattern repeats across all three subjects.
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